Cab Lights
I've heard of this being done on the F-250's that don't come with cab lights. I haven't heard of anyone doing it on an F-150. Though the cab assembly and most of the interior is the same, so it should be possible to add the roof lights. Though I don't think the juice is worth the squeeze personally. But I would look for a guide to do this on the Super Duty side of things. I can't recall what year I saw the guide for doing just that, but I am pretty sure it was for the 2011-2016 Super Duty trucks which wouldn't apply to any of the newer ones.










